curl --request DELETE \
  --url https://your-instance.example.com/api/contacts/bulk-delete \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "contactIds": [
    "<string>"
  ]
}
'

{
  "message": "<string>",
  "deletedCount": 123
}